ENC & High-quality sound: Environmental Noise Cancellation technology is able to monitor and lower the ambient noise. You'll experience the incredible high-quality stereo sound even in a nosiy surroundings. Enjoy audio literally, get HD call and high-quality vedio chat anytime anywhere. Hikapa X9 provides Hi-Fi sound quality, deep bass and 3D surround stereo. Reappearing every detail of the music vividly | Smart Touch&Waterproof: Simple and convenient control system. Tap once to play/pause music and answer the call, double tap to skip forward/backward, long press to adjust the volume, long press for 2s to refuse to answer. We use nanotechnology to effectively prevent earbuds from being damaged by sweat and rain. It is suitable for sports. You can enjoy wonderful music while exercising and showering | Bluetooth 5.Adopting advanced Bluetooth 5.3 technology. You can enjoy low-latency listening experience and high-quality call experience. One step pairing. When you use the earbuds again, just open the cover of charging case and they will be automatically connected with Bluetooth device | Long battery life: Listen for up to 6 hours of listening on a single charge. The charging case can provide an additional 48 hours | Ergonomic design: Adopting ergonomic curved in-ear design. And each earbud only weights 4.6g with round soft silicone ear tips.The wireless earbuds will bring you comfortable wearing experience. It will stay in ear securely even during active movements